Comparable stake leader
Norman D. Schwartz
SEC ownership of BIO-RAD LABORATORIES, INC.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000012208.
Disclosed value leader
Alice N. Schwartz
Comparable rows
5/50
Latest evidence
30 Jun 2026
- Public ticker
- BIO, BIO-B on NYSE
- Parsed ownership sources
-
13D/G, 3/4/5, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Norman D. Schwartz
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
5 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Norman D. Schwartz
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
30 Jun 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000012208
- Issuer location
- Hercules, CA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of BIO-RAD LABORATORIES, INC. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Norman D. Schwartz
Disclosed value leader
Alice N. Schwartz
Comparable rows
5/50
Latest evidence
30 Jun 2026
13D/G
3/4/5
13F
Lead comparable stake: 97%
45 rows are not safely comparable across share classes.
13D/G row: Norman D. Schwartz
Showing 1-8 of 50 holder rows.
Quick read
Norman D. Schwartz leads the comparable SEC ownership view at 97%.
5 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Norman D. Schwartz's linked filing trail.
Comparable ownership
Top 5
Norman D. Schwartz
97%
Alice N. Schwartz
12%
First Eagle Investment Management...
11%
VANGUARD GROUP INC
8.4%
BlackRock, Inc.
7.4%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Norman D. Schwartz |
13D/G
3/4/5
Chairman & CEO, Director, 10%+ Owner
|
97%
Reported 13D/G
· 25 Sep 2025
|
$1,382,052,897
4,929,036 shares
|
$0 | 25 Sep 2025 |
| Alice N. Schwartz |
3/4/5
13D/G
Director Emeritus, 10%+ Owner
|
12%
Reported 13D/G
· 01 May 2025
|
$3,592,267,092
11,862,229 shares
mixed-class rows
|
— | 26 Aug 2024 |
| First Eagle Investment Management, LLC |
13F
13D/G
Company
|
11%
Reported 13D/G
· 30 Jun 2025
|
$765,211,916
2,606,219 shares
|
— | 30 Jun 2026 |
| VANGUARD GROUP INC |
13D/G
The Vanguard Group - 23-1945930
|
8.4%
Reported 13D/G
· 30 Sep 2024
|
$462,850,693
1,907,640 shares
|
$0 | 30 Sep 2024 |
| BlackRock, Inc. |
13F
13D/G
Company
|
7.4%
Reported 13D/G
· 30 Sep 2025
|
$498,822,581
1,698,929 shares
|
— | 30 Jun 2026 |
| Steven D. Schwartz |
3/4/5
10%+ Owner
|
—
mixed-class rows
|
$2,584,683,847
8,560,438 shares
mixed-class rows
|
— | 26 Aug 2024 |
| DIMENSIONAL FUND ADVISORS LP |
13F
Company
|
—
denominator unverified
|
$277,332,178
944,548 shares
|
— | 30 Jun 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
Company
|
—
denominator unverified
|
$242,807,249
826,972 shares
|
— | 30 Jun 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$349,886.
Buys
$0
Insiders: 0
Sells
$349,886
Insiders: 2
Net
-$349,886
Shares: -1,250
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 1,250
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 550 | $0 | $135,597 | -$135,597 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 700 | $0 | $214,289 | -$214,289 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 26 reporting-owner rows connected to BIO-RAD LABORATORIES, INC.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
26
Largest Forms 3/4/5 holder
Alice N. Schwartz
Net 12M change
-$349,886
Latest report
04 Sep 2026
Recent insider transactions for BIO-RAD LABORATORIES, INC.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Allison Schwartz | BIO | Bio-Rad A Common Stock | Tax liability | -1.92% | -34 | 1,734 | 06 Sep 2026 | Direct | ||
| Allison Schwartz | BIO | Bio-Rad A Common Stock | Options Exercise | 5.49% | 92 | 1,768 | 06 Sep 2026 | Direct | ||
| Allison Schwartz | BIO | Restricted Stock Units | Options Exercise | -33.2% | -92 | 185 | 06 Sep 2026 | Direct | ||
| James Barry | BIO | Bio-Rad A Common Stock | Tax liability | -18.8% | -470 | 2,025 | 06 Sep 2026 | Direct | ||
| James Barry | BIO | Bio-Rad A Common Stock | Options Exercise | 73.4% | 1,056 | 2,495 | 06 Sep 2026 | Direct | ||
| James Barry | BIO | Restricted Stock Units | Options Exercise | -33.3% | -1,056 | 2,112 | 06 Sep 2026 | Direct | ||
| Sedat Evran | BIO | Bio-Rad A Common Stock | Tax liability | -7.14% | -277 | 3,603 | 06 Sep 2026 | Direct | ||
| Sedat Evran | BIO | Bio-Rad A Common Stock | Options Exercise | 28.6% | 864 | 3,880 | 06 Sep 2026 | Direct | ||
| Sedat Evran | BIO | Restricted Stock Units | Options Exercise | -33.3% | -864 | 1,728 | 06 Sep 2026 | Direct | ||
| Eva Anette Engelhardt | BIO | Bio-Rad A Common Stock | Tax liability | -21% | -485 | 1,828 | 06 Sep 2026 | Direct | ||
| Eva Anette Engelhardt | BIO | Bio-Rad A Common Stock | Options Exercise | 99.2% | 1,152 | 2,313 | 06 Sep 2026 | Direct | ||
| Eva Anette Engelhardt | BIO | Restricted Stock Units | Options Exercise | -33.3% | -1,152 | 2,304 | 06 Sep 2026 | Direct | ||
| Courtney C. Enloe | BIO | Bio-Rad A Common Stock | Tax liability | -15.6% | -305 | 1,652 | 06 Sep 2026 | Direct | ||
| Courtney C. Enloe | BIO | Bio-Rad A Common Stock | Options Exercise | 64.6% | 768 | 1,957 | 06 Sep 2026 | Direct | ||
| Courtney C. Enloe | BIO | Restricted Stock Units | Options Exercise | -33.3% | -768 | 1,536 | 06 Sep 2026 | Direct | ||
| Roop K. Lakkaraju | BIO | Bio-Rad A Common Stock | Tax liability | -15.8% | -782 | 4,151 | 06 Sep 2026 | Direct | ||
| Roop K. Lakkaraju | BIO | Bio-Rad A Common Stock | Options Exercise | 45.2% | 1,536 | 4,933 | 06 Sep 2026 | Direct | ||
| Roop K. Lakkaraju | BIO | Restricted Stock Units | Options Exercise | -33.3% | -1,536 | 3,072 | 06 Sep 2026 | Direct | ||
| Norman D. Schwartz | BIO | Bio-Rad A Common Stock | Tax liability | -0.41% | -1,854 | 449,019 | 06 Sep 2026 | Direct | ||
| Norman D. Schwartz | BIO | Bio-Rad A Common Stock | Options Exercise | 0.77% | 3,455 | 450,873 | 06 Sep 2026 | Direct | ||
| Norman D. Schwartz | BIO | Restricted Stock Units | Options Exercise | -33.3% | -3,455 | 6,912 | 06 Sep 2026 | Direct | ||
| Allison Schwartz | BIO | Bio-Rad A Common Stock | Tax liability | -4.66% | -82 | 1,676 | 05 Sep 2026 | Direct | ||
| Allison Schwartz | BIO | Bio-Rad A Common Stock | Options Exercise | 14.9% | 228 | 1,758 | 05 Sep 2026 | Direct | ||
| Allison Schwartz | BIO | Restricted Stock Units | Options Exercise | -25% | -228 | 686 | 05 Sep 2026 | Direct | ||
| James Barry | BIO | Bio-Rad A Common Stock | Tax liability | -20.4% | -369 | 1,439 | 05 Sep 2026 | Direct | ||
| James Barry | BIO | Bio-Rad A Common Stock | Options Exercise | 131.6% | 1,027 | 1,808 | 05 Sep 2026 | Direct | ||
| James Barry | BIO | Restricted Stock Units | Options Exercise | -25% | -1,027 | 3,083 | 05 Sep 2026 | Direct | ||
| Sedat Evran | BIO | Bio-Rad A Common Stock | Tax liability | -9.84% | -329 | 3,016 | 05 Sep 2026 | Direct | ||
| Sedat Evran | BIO | Bio-Rad A Common Stock | Options Exercise | 44.3% | 1,027 | 3,345 | 05 Sep 2026 | Direct | ||
| Sedat Evran | BIO | Restricted Stock Units | Options Exercise | -25% | -1,027 | 3,083 | 05 Sep 2026 | Direct | ||
| Eva Anette Engelhardt | BIO | Bio-Rad A Common Stock | Tax liability | -24.1% | -369 | 1,161 | 05 Sep 2026 | Direct | ||
| Eva Anette Engelhardt | BIO | Bio-Rad A Common Stock | Options Exercise | 204.2% | 1,027 | 1,530 | 05 Sep 2026 | Direct | ||
| Eva Anette Engelhardt | BIO | Restricted Stock Units | Options Exercise | -25% | -1,027 | 3,083 | 05 Sep 2026 | Direct | ||
| Jonathan P. DiVincenzo | BIO | Bio-Rad A Common Stock | Tax liability | -25.4% | -668 | 1,963 | 05 Sep 2026 | Direct | ||
| Jonathan P. DiVincenzo | BIO | Bio-Rad A Common Stock | Options Exercise | 186.3% | 1,712 | 2,631 | 05 Sep 2026 | Direct | ||
| Jonathan P. DiVincenzo | BIO | Restricted Stock Units | Options Exercise | -25% | -1,712 | 5,138 | 05 Sep 2026 | Direct | ||
| Courtney C. Enloe | BIO | Bio-Rad A Common Stock | Tax liability | -17.2% | -246 | 1,189 | 05 Sep 2026 | Direct | ||
| Courtney C. Enloe | BIO | Bio-Rad A Common Stock | Options Exercise | 91.4% | 685 | 1,435 | 05 Sep 2026 | Direct | ||
| Courtney C. Enloe | BIO | Restricted Stock Units | Options Exercise | -25% | -685 | 2,055 | 05 Sep 2026 | Direct | ||
| Rajat Mehta | BIO | Bio-Rad A Common Stock | Tax liability | -66.8% | -737 | 366 | 05 Sep 2026 | Direct | ||
| Rajat Mehta | BIO | Bio-Rad A Common Stock | Options Exercise | 1,826 | 1,736 | 05 Sep 2026 | Direct | |||
| Rajat Mehta | BIO | Restricted Stock Units | Options Exercise | -57.1% | -1,826 | 1,371 | 05 Sep 2026 | Direct | ||
| Roop K. Lakkaraju | BIO | Bio-Rad A Common Stock | Tax liability | -14.1% | -559 | 3,397 | 05 Sep 2026 | Direct | ||
| Roop K. Lakkaraju | BIO | Bio-Rad A Common Stock | Options Exercise | 53% | 1,370 | 3,956 | 05 Sep 2026 | Direct | ||
| Roop K. Lakkaraju | BIO | Restricted Stock Units | Options Exercise | -25% | -1,370 | 4,110 | 05 Sep 2026 | Direct | ||
| Norman D. Schwartz | BIO | Bio-Rad A Common Stock | Tax liability | -0.64% | -2,876 | 447,418 | 05 Sep 2026 | Direct | ||
| Norman D. Schwartz | BIO | Bio-Rad A Common Stock | Options Exercise | 0.92% | 4,109 | 450,294 | 05 Sep 2026 | Direct | ||
| Norman D. Schwartz | BIO | Restricted Stock Units | Options Exercise | -25% | -4,109 | 12,330 | 05 Sep 2026 | Direct | ||
| Allison Schwartz | BIO | Restricted Stock Units | Award | 719 | 719 | 04 Sep 2026 | Direct | |||
| James Barry | BIO | Restricted Stock Units | Award | 4,313 | 4,313 | 04 Sep 2026 | Direct |
* marks a reported price that did not pass the local price check.